.yctab0 {
    width: 1200px;
    height: 82px;
    /* background-color: darkcyan; */
    margin: 52px auto auto auto;
    text-align: center;
    position: relative;
    font-family: poppin, Tahoma, Arial, 微软雅黑, sans-serif;
    line-height: 1.5;
}

.yctab1 {
    font-size: 14px;
    color: #333;
    cursor: pointer;
    float: left;
    padding: 0 8px;
    margin: 0 24px 15px 0;
}

.yctab1:hover {
    background-color: #31c27c;
    color: white;
}

.yctab00 {
    position: relative;
    height: auto;
    clear: both;
    overflow: hidden;
    font-weight: 400;
    line-height: 26px;
    padding-left: 65px;
}

.ycmod {
    overflow: hidden;
    margin-bottom: 20px;
    /* 自己加的 */
    width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.yclist {
    position: relative;
    font-size: 0;
    width: 1250%;
    transition: .5s;
}

.ycicon1 {
    background-image: url(../ycpics/icons.png);
    background-repeat: no-repeat;
    margin-left: 6px;
    background-position: -120px -40px;
    display: inline-block;
}

#ycMV a {
    text-decoration: none;
}

#ycMV a:visited {
    color: unset;
}

#ycMV a:hover {
    color: #31c27c;
}

a:hover .ycicon1 {
    background-position: -120px -60px;
}

.ycmod a:hover {
    color: #31c27c;
}

.ycmodall {
    left: 0%;
    position: relative;
    font-size: 0;
    width: 100%;
    transition: .5s;
}

.ycsw1 {
    position: absolute;
    top: -50px;
    right: 108px;
    height: 40px;
    line-height: 40px;
    border-radius: 2px;
    font-size: 0;
}

.ycsw1>a {
    background-color: white;
    color: black;
    border-color: gray;
    z-index: 2;
    display: inline-block;
    padding: 0 16px;
    height: 38px;
    position: relative;
    font-size: 14px;
}

.ycsw1:hover>a {
    background-color: #31c27c;
    color: #fff;
    border-color: #31c27c;
    z-index: 2;
}

.ycmvul {
    display: inline-block;
    width: 96%;
    margin-right: 0;
    padding: 0px;
    font-size: 14px;
    margin-right: -20px;
    /* ↓调试 */
    margin-left: 20px;
    transition: all linear 0.2s;
}

.ycul2 {
    height: 0px;
    opacity: 0;
}

.ycsw2:hover~.ycul1 {
    height: 0;
    overflow: hidden;
}

.ycsw2:hover~.ycul2 {
    height: 1026px;
    opacity: 1;
}

.ycmvli {
    width: 25%;
    padding-bottom: 25px;
    float: left;
    overflow: hidden;
}

.ycmvbox {
    position: relative;
    margin-right: 20px;
}

.ycmvbox:hover>a>.ycmvmask {
    opacity: 0.2;
}

.ycmvbox:hover>a>.ycmvpic {
    transform: scale(1.1, 1.1);
}

.ycmvbox:hover>a>.ycmvicon {
    transform: scale(1) translateZ(0);
    transition-property: opacity, transform;
    transition-duration: .5s;
    cursor: pointer;
    opacity: 1;
}

.ycmva {
    position: relative;
    display: block;
    overflow: hidden;
    padding-top: 56.5476%;
    margin-bottom: 15px;
}

.ycmvpic {
    transform: scale(1);
    transition: transform .75s;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    scale: var(1);
    transform: .75s;
    border: 0;
}

.ycmvmask {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: 0;
    filter: alpha(opacity=0);
    transition: opacity .5s;
}

.ycmvicon {
    background-image: url(../ycpics/icon1.png);
    position: absolute;
    left: 50%;
    top: 50%;
    margin: -35px;
    width: 70px;
    height: 70px;
    filter: alpha(opacity=0);
    opacity: 0;
    -webkit-transform: scale(.7) translateZ(0);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: .5s;
    transform: scale(.7) translateZ(0);
    transition-property: opacity, transform;
    transition-duration: .5s;
}

.ycmvicon::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    /* background: linear-gradient(180deg,transparent 0,rgba(0,0,0,.4) 80%,rgba(0,0,0,.7)); */
}

.ycmvtitle {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.5;
    font-family: poppin, Tahoma, Arial, 微软雅黑, sans-serif;
    font-size: 14px;
    font-weight: 400;
    margin: 0px;
}

.ycmvsinger {
    color: #999;
    height: 24px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 0px;
}

.ycmvauthor {
    color: #999;
}

.ycmvinfo {
    color: #999;
    line-height: 18px;
    height: 20px;
}

.ycmvlisten {
    margin-right: 10px;
}

.ycmvlistenicon {
    display: inline-block;
    width: 19px;
    height: 12px;
    background-position: -180px -20px;
    margin-right: 5px;
    vertical-align: -1px;
}

.ycsideswitch {
    width: 100%;
    text-align: center;
    font-size: 0;
    color: #000;
    line-height: 1.5;
    font-family: poppin, Tahoma, Arial, 微软雅黑, sans-serif;
}

.ycswicon {
    display: block;
    width: 8px;
    height: 8px;
    background-color: rgba(0, 0, 0, .1);
    border-radius: 12px;
    margin: 0 auto;
    color: #000;
    cursor: pointer;
}

.ycswicon:hover {
    background-color: rgba(0, 0, 0, .3);
}

.ycsideswitch>div {
    display: inline-block;
    width: 28px;
    height: 12px;
    padding: 0 0 26px;
    margin: 0 1px;
    background: transparent;
}

.ycLRB {
    width: 100%;
    height: 622px;
    /* background-color: rgba(143, 188, 143, 0.493); */
    position: absolute;
    overflow: hidden;
}

.ycLRB:hover>.ycLB,
.ycLRB:hover>.ycRB {
    opacity: 1;
    transform: translateX(0);
    transition-property: opacity, transform, background, width;
    transition-duration: .5s;
}

.ycLRB:hover>.ycLB {
    transition-property: opacity, transform, background, left;
    transition-duration: .5s;
    left: 0;
}

.ycLRB:hover>.ycRB {
    transition-property: opacity, transform, background, right;
    transition-duration: .5s;
    right: 0;
}

.ycLB:hover,
.ycRB:hover {
    background: rgba(0, 0, 0, .1);
}

.ycLB,
.ycRB {
    cursor: pointer;
    position: absolute;
    top: 50%;
    margin-top: -54px;
    width: 79px;
    height: 108px;
    background: rgba(0, 0, 0, .05);
    opacity: 0;
    visibility: none;
    transition-duration: .5s;
    z-index: 4;
}

.ycLB {
    left: -79px;
}

.ycRB {
    right: -79px;
}